JP2016093398A - Fluid line connection system and line connection member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid line connection system capable of appropriately determining a connection state of a fluid line.SOLUTION: A first line connection member 1 includes a first connector 101 provided in a first flow channel of fluid, and a first optical fiber 102 whose second end part 102b is installed in the first connector 101. A second line connection member 2 includes a second connector 201 provided in a second flow channel of the fluid which is connected to the first connector 101 so that the second flow channel is communicated with the first flow channel, and a second optical fiber 202 whose first end part is optically connected to the second end part of the first optical fiber 102 when the first end part 202a is installed to the second connector 201, and the first connector 101 and the second connector 201 are connected to each other. An irradiation part 3 irradiates light to the first end part of the first optical fiber 102.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a system and the like for determining connection of a medical fluid line.

  As a conventional technique, a pipe line connected to an infusion storage container (for example, a drip tube) with a metal needle or thin tube attached to the tip, a terminal electrode provided in at least one place of the pipe line, a puncture part or a thin tube insertion It has a terminal electrode provided on the living body in the vicinity of the head, an AC power supply, and a monitor device for extracting the electrical state between the terminal electrodes, and the terminal electrodes are connected via the monitor device and an AC voltage is applied. As a result, it has been known that an infusion solution is used as a conductive path to form a series closed circuit that is capacitively coupled with the infusion solution and is resistance-connected through a living body (for example, Patent Document 1). reference).

  In addition, a power supply frequency signal generated by electrostatic induction from a power supply line is applied to a living body, and another electrode is attached to the living body via an electrode provided in the infusion line using the conductivity of the infusion liquid, blood, or body fluid. It is known that the power frequency signal is monitored and the state of the infusion, blood or body fluid in the infusion line is indicated by showing different values depending on whether the infusion line is secured or not. (For example, refer to Patent Document 2).

Japanese Unexamined Patent Publication No. 2000-140092 (first page, FIG. 1 etc.) Japanese Patent No. 4026690 (first page, FIG. 1 etc.)

  However, in the prior art, it has been determined whether or not the connection portion of the infusion line is normally connected based on the electrical state of the electrodes or the like provided at the connection portion of the infusion line. For this reason, the subject that the connection state of a fluid line cannot be judged appropriately occurred.

  For example, in the related art, since the connection is determined by flowing an electric current, if the electric current flows to the patient by any chance, the patient may be affected in some way.

  Also, for example, if the outside of the infusion line gets wet with liquids such as blood or infusion contents, the infusion line will actually be energized even if the infusion line is about to disconnect, and the infusion line will be properly connected. There was a problem that it might be misjudged as being done.

  Also, for example, when using an electrical device such as an automatic external defibrillator during emergency resuscitation, etc., there is a risk that the device that determines the connection state may break down or adversely affect the use of the electrical device. There was a problem.

  In addition, since wiring, electrodes, and the like for supplying current are provided, there is a problem that it cannot be used in an MRI room or the like.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fluid line connection system and a line connection member that can appropriately determine the connection state of fluid lines.

  A fluid line connection system according to the present invention is a fluid line connection system including a first line connection member, a second line connection member, and an irradiation unit used for connection of a medical fluid line. The line connecting member has a first connector provided in the first flow path of the fluid, a first end and a second end, and the second end is installed in the first connector. A first optical fiber, wherein the second line connecting member is provided in the second flow path of the fluid, and the first flow path is communicated with the first flow path. A second connector connected to the connector; a first end; and a second end; the first end being installed on the second connector; the first connector and the second connector; Are connected, the first end is optically connected to the second end of the first optical fiber. Comprising Ba and the irradiation unit is a fluid line connection system for irradiating light to the first end of the first optical fiber.

  With this configuration, it is possible to appropriately determine the connection state of the fluid line by the light emitted from the first optical fiber or the second optical fiber. For example, it can be determined whether or not the first connector and the second connector are normally connected.

  The fluid line connection system of the present invention is the fluid line connection system, wherein the optical axis direction of the second end of the first optical fiber and the optical axis direction of the first end of the second optical fiber are the same. Is a fluid line connection system that is installed inclined with respect to the connection direction of the first connector and the second connector.

  With this configuration, when the first optical fiber and the second optical fiber are not sufficiently optically connected, the light emitted from the second end of the first optical fiber is the first connector. Since the light is irradiated in the lateral direction of the second connector, it is easy to detect light leaking from the outside, and to easily determine the connection state of the fluid line.

  In the fluid line connection system of the present invention, in the fluid line connection system, the first line connection member is a tube constituting the first flow path, and the first connector is at least at one end. A first pipe which is a provided pipe, and the second line connecting member is a pipe which constitutes the second flow path, and which is provided with a second connector at at least one end. A fluid line connection system further comprising a second pipe.

  With this configuration, it is possible to appropriately determine the connection status using the connectors of the first tube and the second tube by the light emitted from the first optical fiber or the second optical fiber.

  The fluid line connection system of the present invention is the fluid line connection system according to the fluid line connection system, wherein the light emitted from the irradiation unit is light of a color that can be visually discerned with respect to room light.

  With this configuration, light emitted from the first optical fiber and the second optical fiber can be easily detected even under room light.

  The fluid line connection system according to the present invention includes a light receiving unit that receives light emitted through the second optical fiber in the fluid line connection system, and a first connector according to the light received by the light receiving unit. It is the fluid line connection system further provided with the output part which performs the output regarding a connection state with a 2nd connector.

  With this configuration, it is possible to automatically detect the connection state of the fluid line.

  In the fluid line connection system according to the present invention, in the fluid line connection system, when the intensity of the light received by the light receiving unit is equal to or lower than a predetermined threshold value, the output unit is connected to the first connector and the second connector. It is a fluid line connection system that performs output indicating that the connector is not connected.

  With this configuration, it is possible to automatically detect the connection status of the fluid line from the intensity of light transmitted through the second optical fiber.

  The fluid line connection system according to the present invention is a fluid line connection system in which the light receiving unit receives light emitted from the second end of the second optical fiber in the fluid line connection system.

  With this configuration, it is possible to automatically detect the connection state of the fluid line from the light transmitted from the first optical fiber via the second optical fiber.

  In the fluid line connection system of the present invention, in the fluid line connection system, the light emitted from the second end portion is transmitted onto the optical axis of the second end portion of the second optical fiber. And a light-receiving portion that is reflected by the reflecting mirror, passes through the second optical fiber and the first optical fiber, and passes through the first end portion of the first optical fiber. It is the fluid line connection system which receives the light radiate | emitted from.

  With this configuration, the fluid line connection state can be automatically detected using light transmitted through the second optical fiber, reflected by the reflecting mirror, and incident on the second optical fiber again. In addition, since it is not necessary to provide a light receiving unit, an output unit, or the like on the second end side of the second optical fiber, for example, the system can be appropriately arranged so as not to obstruct medical practice.

  The line connecting member of the present invention is a line connecting member used for connecting a medical fluid line, and includes a connector provided in a fluid flow path, and an optical fiber having one end installed in the connector. The connector is connectable to another connector provided in another flow path so that the flow path provided with the connector communicates with another flow path constituting the fluid line. The end of the line connection member is optically connected to one end of the optical fiber installed in the other connector when the connector is connected to the other connector.

  With this configuration, by irradiating light to an end portion different from the end portion attached to the connector of the optical fiber, it is possible to appropriately determine the connection state of the fluid line by the light emitted from the optical fiber. . For example, it can be determined whether or not the connector and the other connector are normally connected.

  The line connecting member according to the present invention is a line connecting member further comprising a tube that constitutes a fluid flow path in the line connecting member, the connector having a connector provided at one end.

  With this configuration, it is possible to appropriately determine the connection status of the fluid line.

  According to the fluid line connection system and the like according to the present invention, it is possible to appropriately determine the connection state of the fluid line.

The figure which shows the state in which the 1st line connection member and the 2nd line connection member are not connected for demonstrating an example of the fluid line connection system in Embodiment 1 of this invention (FIG. 1 (a)). And a diagram showing a connected state (FIG. 1B) Front view (FIG. 2 (a)), plan view (FIG. 2 (b), perspective view (FIG. 2 (c)), and partially cut away of the main part of the first line connecting member of the fluid line connecting system Figure (Figure 2 (d)) Front view (FIG. 3 (a)), plan view (FIG. 3 (b), perspective view (FIG. 3 (c)), and partially cut away of the main part of the second line connecting member of the fluid line connecting system Figure (Figure 3 (d)) FIG. 4A is a plan view for explaining a state in which the first line connecting member 1 and the second line connecting member 2 of the fluid line connecting system are normally connected, and FIG. b)), a plan view (FIG. 4 (c)) and a perspective view (FIG. 4 (d)) for explaining a state of not being normally connected. The figure which shows the needle part of the fluid line connection system The figure which shows an example of the fluid line connection system in Embodiment 2 of this invention (FIG. 6 (a)), the figure which shows an irradiation part (FIG.6 (b)), and a reflective mirror Figure showing (Figure 6 (c))

  Hereinafter, embodiments of a fluid line connection system and the like will be described with reference to the drawings. In addition, since the component which attached | subjected the same code | symbol in embodiment performs the same operation | movement, description may be abbreviate | omitted again.

(Embodiment 1)
FIG. 1 is a diagram illustrating a state in which a first line connecting member 1 and a second line connecting member 2 are not connected, for explaining an example of a configuration of a fluid line connecting system 1000 according to the present embodiment. FIG. 1 (a)) and a diagram (FIG. 1 (b)) showing a state in which a first line connecting member 1 and a second line connecting member 2 are connected.

  FIG. 2 is a front view (FIG. 2 (a)) and a plan view (FIG. 2) of the main part of the first line connecting member 1 in the present embodiment as viewed from the side connected to the second line connecting member 2. It is a perspective view (Drawing 2 (c)) seen from the upper part of the front side (D) and a partly notched figure (Drawing 2 (d)).

  FIG. 3 is a front view of the main part of the second line connecting member 2 in the present embodiment as viewed from the side connected to the first line connecting member 1 (FIG. 3A), and a plan view (FIG. 3). It is the perspective view (FIG.3 (c)) seen from the front side upper direction, and a partial notch figure (FIG.3 (d)).

  FIG. 4 is a plan view (FIG. 4A) for explaining a state in which the first line connecting member 1 and the second line connecting member 2 are normally connected in the present embodiment. A perspective view for explaining the state (FIG. 4B), a plan view for explaining the state of not being normally connected (FIG. 4C), and a state of being not normally connected It is a perspective view (Drawing 4 (d)). It is a figure for explaining the state where the 1st line connection member 1 and the 2nd line connection member 2 are not connected normally.

  The fluid line connection system 1000 includes a first line connection member 1, a second line connection member 2, and an irradiation unit 3.

  The fluid line connection system 1000 is a system used to connect medical fluid lines. Medical use indicates that it can be used for medical practice, for example. The fluid is, for example, a gas, a liquid, or a fluid object. The fluid line is, for example, a pipe for supplying or discharging a fluid, a supply path constituted by a pipe, or a discharge path. The pipe is, for example, a conduit or a pipe. For example, the fluid line may be considered as a path for supplying and discharging fluid. A medical fluid line is a line that supplies a fluid such as a liquid used for a medical procedure to a blood vessel such as a patient's vein, a patient's mouth, nose, throat, trachea, etc. This is a line for supplying fluid such as gas to be used. The medical fluid line is, for example, an infusion line for water, electrolytes, solutions of drugs and nutrients, a transfusion line for supplying blood, and the like. Also, an anesthesia line that supplies anesthetic gas, oxygen that supplies oxygen and air, and a ventilator connection line. A line for supplying a liquid food or the like may be considered as a medical fluid line. Further, a dialysis line or the like used for artificial dialysis may be considered as a medical fluid line.

  The fluid line is configured by connecting a plurality of pipes by, for example, a fluid line connection system 1000. The fluid line connection system 1000 may be considered to have, for example, a pipe constituting the fluid line, and may not have a pipe. For example, the first line connection member 1 and the second line connection member 2 constituting the fluid line connection system 1000 may have pipes constituting the fluid line. In addition, what connected other flow paths to the existing fluid line, what connected other flow paths and extended the flow path, and what branched the flow path are considered here as fluid lines. Good.

  In addition, in FIG. 1, the case where the 1st line connection member 1 has the 1st pipe | tube 103 and the 2nd line connection member 2 has the 2nd pipe | tube 203 is mentioned as an example, respectively. explain.

  The pipe constituting the fluid line may be any pipe as long as it can be used for the medical fluid line. For example, the pipes constituting the fluid line may be any material. For example, the material of the pipe constituting the infusion line is thermoplastic elastomer, silicone rubber, polybutadiene, polyethylene, polyurethane, Teflon (registered trademark), natural rubber, or the like. Moreover, the pipe | tube which comprises a fluid line may have what kind of size (for example, a diameter and length). As the material and size of the fluid line, an appropriate one is selected according to the use of the fluid line.

  In addition, in FIG. 1, the case where the fluid line connection system 1000 is used for the connection of an infusion line is demonstrated as an example. However, it goes without saying that it may be used for lines other than the infusion line.

  The first line connecting member 1 includes a first connector 101, a first optical fiber 102, a first tube 103, an introduction needle 104, an infusion tube 105, and a flow rate controller 106. .

  The first connector 101 is provided in the first fluid flow path. The flow path is, for example, a path through which fluid flows. The flow path is constituted by a tube, for example. Specifically, the fluid first flow path is at least a part of the fluid flow path formed by the fluid line. For example, when the fluid line is an infusion line, the first fluid flow path may be considered as a part of the infusion line. Here, a case where the first flow path is a flow path constituted by the first building 103 and the like will be described as an example.

  The first connector 101 connects, for example, two or more pipes constituting the flow path of the fluid line. The connector is, for example, a connection tool. For example, the first connector 101 includes a pipe constituting the first flow path and another flow so that the first flow path provided with the first connector 101 communicates with another flow path. Used to connect to other pipes (not shown) constituting the path. For example, the first connector 101 has a second connector such that the first channel provided with the first connector 101 communicates with the second channel provided with the second connector 201. Connected. Thereby, for example, the first pipe 103 constituting the first flow path and the second pipe 203 constituting the second flow path described later are connected. For the first connector 101, for example, the fluid flowing through the first flow path is supplied to another connector connected to the first connector 101, or the fluid supplied from the other connector is supplied to the first connector 101. A through-hole 101a for supplying to the flow path is provided. The first connector 101 may further include a valve (not shown) for adjusting the flow rate of the fluid flowing through the through hole 101a and the like. The same applies to the second connector 201 below.

  The first connector 101 has a connection structure for connecting to other connectors. If this connection structure is the structure which can connect the 1st connector 101 and another connector so that a 1st flow path and the other flow path in which the other connector was provided may be connected. Any connection structure may be used. The other connector here is, for example, the second connector 201, and the other flow path is the second flow path. Further, the connection structure may have a locking structure for holding a state in which the first connector 101 and another connector such as the second connector 201 are connected, a fixing structure, or the like. For example, the first connector 101 may be a lock connector. In addition to the connection structure, a fixing structure or the like may be provided. In this connection structure, the first connector 101 and another connector such as the second connector 201 connected to the first connector 101 are connected so that the relative positional relationship is a constant relationship. A possible structure is preferred. For example, when the connection structure of the first connector 101 and the second connector 201 is a fitting type structure, the first connector 101 and the second connector 201 are in the rotation direction with the connection direction as the rotation axis. A portion to be connected for defining the positional relationship may have a groove and a protrusion that fit together.

  For example, in FIG. 2, as an example, the first connector 101 has, as a connection structure, a convex portion 101b having a screw groove that is screwed with a screw groove provided in a concave portion 201b of the second connector 201 described later. Is shown. By fitting the convex portion 101b having the thread groove into the concave portion 201b having the thread groove of the second connector 201, the first connector 101 and the second connector 201, as shown in FIG. Can be connected such that the first channel and the second channel are in communication. Furthermore, the first connector 101 and the second connector 201 are connected so that the relative positional relationship is a constant relationship.

  The material, size, etc. of the first connector 101 do not matter. The material of the first connector 101 is plastic. This plastic is desirably a plastic that can be used for medical purposes.

  The first optical fiber 102 may be any optical fiber as long as it is an optical fiber. For example, the first optical fiber 102 may be made of plastic or glass, and the material thereof is not limited. The first optical fiber 102 may be a transmission type optical fiber in which light travels in one direction, such as a parallel type, a coaxial type, a split type, etc. Alternatively, a reflection type optical fiber having a core and a core in one optical fiber may be used. The first optical fiber 102 may be composed of a plurality of optical fibers. Further, the length of the first optical fiber 102 does not matter. In the following, a case where the first optical fiber 102 is a transmission type optical fiber will be described as an example.

  The first optical fiber 102 has a first end 102a and a second end 102b. The end portion of the first optical fiber 102 is an end portion of the first optical fiber 102. Hereinafter, the first end portion 102a is referred to as a first fiber end 102a, and the second end portion 102b is referred to as a second fiber end 102b.

  The second fiber end 102 b of the first optical fiber 102 is installed in the first connector 101. The second fiber end 102b of the first optical fiber 102 is connected to a first fiber end 202a of the second optical fiber 202 described later in a state where the first connector 101 and the second connector 201 are connected. It is installed at a position where it is optically connected. Here, the state where the first connector 101 and the second connector 201 are connected may be considered as a state where the first connector 101 and the second connector 201 are normally connected. The state of being normally connected is, for example, that the first connector 101 and the second connector 201 are connected so as not to cause leakage of fluid flowing through the fluid line. . The leak here may be considered as a leak of a predetermined amount or more. Or the state connected normally may be connected so that a looseness, disconnection, etc. may not occur in a connection part at the time of use of a fluid line.

  The optical connection between the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 means, for example, that the first optical fiber 102 That is, the optical axis of the second fiber end 102 b and the optical axis of the first fiber end 202 a of the second optical fiber 202 are arranged to coincide with each other. The optical connection means that the light is emitted from one of the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202, for example. It may be considered that the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are arranged so that the incident light enters the other. . Further, the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are connected so that the optical connection loss is less than a predetermined threshold value. It may be considered that they are optically connected. That is, the amount of deviation between the optical axis of the second fiber end 102b of the first optical fiber 102 and the optical axis of the first fiber end 202a of the second optical fiber 202 and the angle formed by the optical axis are When the connection loss is less than a predetermined threshold value, the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are optically connected. You may think.

  Further, when optically connected, the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are in contact with each other, but are not in contact with each other. It may be. If the optical connection loss is less than a predetermined threshold value, the first fiber end 202a of the second optical fiber 202 may be non-contact. The second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 may be optically connected via a lens or the like (not shown).

  When the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are brought into contact with each other and optically connected to each other, the first connector 101 is used. So that the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 do not collide with each other at the time of connection with the second connector 201. Each fiber end is preferably installed in the first connector 101 and the second connector 201.

  The shape of the second fiber end 102b of the first optical fiber 102 does not matter. For example, the end face of the second fiber end 102b may be perpendicular to the optical axis of the second fiber end 102b or may be inclined. For example, when the second fiber end 102b is inclined with respect to the optical axis, the end face of the second fiber end 102b arranged with inclination is the first connector 101 and the second connector. It may be perpendicular to the direction of connection with 201. Further, the end face of the second fiber end 102b may be rounded into a substantially spherical surface. Note that the end surface of the second fiber end 102b is exposed to the outside in a state where the first connector 101 is not connected to the second connector 201, for example. The first connector 101 may be exposed on the side where the second fiber end 102b is connected to the second connector 201 of the first connector 101, and the end face of the second fiber end 102b. May only be exposed

  The optical axis direction of the second fiber end 102b of the first optical fiber 102 is arranged so as to be inclined with respect to the connection direction between the first connector 101 and the second connector 201. This is preferable in detecting poor connection in the vicinity of the first connector 101 and the second connector 201. For example, this inclination angle, that is, the angle formed by the optical axis direction of the second fiber end 102b of the first optical fiber 102 and the connection direction of the first connector 101 and the second connector 201 is the optical connection. It is preferable to set appropriately so that the loss does not become larger than a predetermined threshold value. The optical axis direction of the second fiber end 102b may be considered as the traveling direction of the light emitted from the second fiber end 102b. The connection direction between the first connector 101 and the second connector 201 may be considered, for example, the direction in which the fluid flows between the connected first connector 101 and the second connector 201. The connection direction is, for example, the direction indicated by the arrow 50 in FIG. 1 or the opposite direction. Note that the connection direction may be considered as a direction in which the through hole 101a and the through hole 201a extend.

  The first optical fiber 102 may be arranged in any manner other than the second fiber end 102b. For example, the first optical fiber 102 may be provided along a first tube 103 described later. In this case, for example, it is preferable that at least a part of the first tube 103 is stopped by a band, a tape, a clip, or the like. The first optical fiber 102 may be at least partially embedded in the wall of the first tube 103, or may be at least partially disposed in the first tube 103.

  The first tube 103 has a first end 103a and a second end 103b. The end of the first tube 103 is an end portion of the first tube 103. Hereinafter, the first end portion 103a and the second end portion 103b are appropriately referred to as a first tube end 103a and a second tube end 103b.

  The material of the first tube 103 is not limited. The first tube 103 is a tube constituting a first flow path for fluid. A first connector 101 is provided at a second tube end 103 b that is one end of the first tube 103. The second tube end 103 b of the first tube 103 may be inserted into the through hole 101 a of the first connector 101.

  Here, as an example, the first tube end 103a of the first tube 103 is provided with an introduction needle 104 used to connect the first tube 103 to an infusion solution bottle or bag. Yes. In addition, an infusion tube 105 and a flow rate controller 106 are inserted between the first tube end 103a and the second tube end 103b of the first tube 103. Note that the introduction needle 104, the drip tube 105, and the flow rate controller 106 are known techniques, and thus detailed description thereof is omitted here.

  Here, the case where the first line connecting member 1 constitutes a part of the infusion line and includes the introduction needle 104, the drip tube 105, and the flow rate controller 106 is shown as an example. However, the first line connecting member 1 may not have some or all of them. For example, the first line connecting member 1 does not include the introduction needle 104, the drip tube 105, and the flow rate controller 106, and the first pipe end 103 a of the first pipe 103 of the first line connecting member 1. However, you may be connected with apparatuses, such as a bottle, a bag, and a pump for supplying fluids, such as infusion. Further, the first pipe end 103a of the first pipe 103 of the first line connecting member 1 may be connected to a connector similar to the first connector 101 as described above. A connector similar to the second connector 201 may be connected. In this case, the first fiber end 102 a of the first optical fiber 102 may be installed in the second connector 201 instead of the first fiber end 102 a of the second optical fiber 202.

  The second line connecting member 2 includes a second connector 201, a second optical fiber 202, a second tube 203, and a needle portion 204.

  The second connector 201 is provided in the second fluid flow path. The second connector 201 connects, for example, two or more pipes constituting the flow path of the fluid line. The second connector 201 is connected to the first connector 101 so that the second flow path in which the second connector 201 is provided communicates with the first flow path.

  For example, the second connector 201 is connected to the second connector 201 for supplying the fluid supplied from the first connector 101 to the first flow path or to the fluid flowing through the second flow path. A through hole 201a for supplying the first connector 101 is provided.

  The second connector 201 has a connection structure for connecting to the first connector 101. As long as this connection structure is a structure which can connect the 1st connector 101 and the 2nd connector 201 so that a 1st flow path and a 2nd flow path may be connected, what kind of thing A connection structure may be used. This connection structure has a structure corresponding to the connection structure of the first connector 101. For example, the second connector 201 may be a lock connector corresponding to the first connector 101. In addition, as described above, this connection structure connects the second connector 201 and the first connector 101 connected to the second connector 201 so that the relative positional relationship is a constant relationship. A possible structure is preferred.

  For example, in FIG. 3, as an example, the second connector 201 has, as a connection structure, a concave portion 201 b having a screw groove that is screwed with a screw groove provided on the convex portion 101 b of the first connector 101 described later. Is shown. By fitting the convex portion 101b of the first connector 101 into the concave portion 201b having the thread groove of the second connector 201, as shown in FIG. 201 can be connected such that the first flow path and the second flow path are communicated with each other. Furthermore, the first connector 101 and the second connector 201 are connected so that the relative positional relationship is a constant relationship. However, when the convex portion 101b having the screw groove is not sufficiently screwed into the concave portion 201b having the screw groove, the relative positional relationship between the first connector 101 and the second connector 201 is constant. Not.

  About the material, size, etc. of the 2nd connector 201, the thing similar to the 1st connector 101 mentioned above can be utilized, and detailed description is abbreviate | omitted here.

  It goes without saying that a connector having the same shape as the first connector 101 described above may be used as the second connector, and a connector having the same shape as the second connector 201 may be used as the first connector. Nor. Moreover, as long as the connector of the 1st connector 101 and the 2nd connector 201 can be utilized as a connector of a fluid line, you may use what has another shape and connection structure. However, it is preferable to use the first connector 101 and the second connector 201 that have a relative positional relationship when they are connected.

  The second optical fiber 202 has a first end 202a and a second end 202b. An end portion of the second optical fiber 202 is an end portion of the second optical fiber 202. Hereinafter, the first end 202a is appropriately referred to as a first fiber end 202a, and the second end 202b is appropriately referred to as a second fiber end 202b. The first fiber end 202a of the second optical fiber 202 is connected to the first fiber end 202a of the second optical fiber 202 when the first connector 101 and the second connector 201 are connected. The second connector 201 is installed so as to be optically connected to the second fiber end 102 b of the one optical fiber 102. The optical connection is the same as described above. For example, with the first connector 101 and the second connector 201 properly attached, the second fiber end 102b of the first optical fiber 102 and the first fiber end 102a of the second optical fiber 202 are attached. Or the light emitted from the second fiber end 102b of the first optical fiber 102 is incident on the first fiber end 202a of the second optical fiber 202, or The first fiber end 202a of the second optical fiber 202 is installed in the second connector 201 so that the optical connection loss is made to be equal to or less than a predetermined threshold value. In the second optical fiber 202, the first fiber end 202a may be exposed on the side of the second connector 201 connected to the first connector 101, and only the end face of the first fiber end 202a. May be exposed

  For example, the optical axis direction of the first fiber end 202a of the second optical fiber 202 is arranged to be inclined with respect to the connection direction between the first connector 101 and the second connector 201. This is preferable in detecting a connection failure between the two. When the first optical fiber 102 is inclined with respect to the connection direction between the first connector 101 and the second connector 201, the inclination angle is preferably the same as this inclination angle. Here, the inclination angle is assumed to be an acute angle. For example, the first fiber end 202 a of the second optical fiber 202 and the second fiber end 102 b of the first optical fiber 102 have optical axis directions between the first connector 101 and the second connector 201. In the case where the first connector 101 and the second connector 201 are normally connected, the optical axis direction is substantially on the same straight line, preferably on the same straight line. It is preferable that it is located.

  The material and structure of the second optical fiber 202, the arrangement with respect to the second tube 203, which will be described later, and the like are the same as those of the first optical fiber 102. The second optical fiber 202 may be a transmission type or a reflection type, and the second optical fiber 202 is composed of a plurality of optical fibers in the same manner as the first optical fiber 102. May be.

  The second tube 203 has a first end 203a and a second end 203b. The end of the second tube 203 is an end portion of the second tube 203. Hereinafter, the first end portion 203a and the second end portion 203b of the second tube 203a are appropriately referred to as a first tube end 203a and a second tube end 203b. The material of the second tube 203 is not limited. The 2nd pipe | tube 203 is a pipe | tube which comprises the 2nd flow path of the fluid. A second connector 201 is provided at the first tube end 203 a that is one end of the second tube 203. The first tube end 203 a of the second tube 203 may be inserted into the through hole 201 a of the second connector 201.

  In addition, here, as an example, the second tube end 203b of the second tube 203 is provided with a needle portion 204 for connecting an infusion supplied to the second tube 203 to a blood vessel or the like in the human body. Yes.

  FIG. 5 is a diagram showing the needle portion 204. The needle portion 204 is a hollow needle 204a, and the needle 204a is fixed and attached to the second tube end 203b of the second tube 203, and the second tube end 202b of the second optical fiber 202 is attached to the needle. And a fixing tool 204b for fixing in the vicinity of 204a. The needle 204a is a vein needle, for example. The vicinity of the second tube end 202b of the second optical fiber 202 is fixed by a fixture 204b so that the light emission direction of the second tube end 202b is the direction in which the needle 204a extends.

  In addition, although the 2nd line connection member 2 comprises a part of infusion line here and has shown as an example the case provided with the needle part 204, the 2nd line connection member is shown. 2 does not have to have this needle portion 204. For example, the second pipe end 203b of the second pipe 203 of the second line connecting member 2 does not have the needle portion 204, and the second pipe end 203b of the second pipe 203 is connected to the pump. Or a device such as an aspirator.

  Further, the first connector 101 described above is provided on the second tube end 203b of the second tube 203 of the second line connecting member 2, and the first connector 101 is provided with the first light beam. Instead of the second fiber end 102b of the fiber 102, the second fiber end 202b of the second optical fiber 202 may be provided. In this case, by connecting the first connector 101 and the second connector 201, the second line connecting member 2 is further replaced with a second connector obtained by replacing the similar needle portion 204 with the first connector 101. A fluid line may be configured by connecting to the line connecting member 2 or connecting to the second line connecting member 2 having another needle portion 204.

  The irradiation unit 3 irradiates the first fiber end 102 a of the first optical fiber 102 with light. For example, the irradiating unit 3 has, for example, the first optical fiber 102 with respect to the first fiber end 102a such that its optical axis coincides with the optical axis of the first fiber end 102a of the first optical fiber 102. The light emitted from the irradiation unit 3 is incident on the first fiber end 102a. The irradiation unit 3 includes a light source (not shown) such as an LED or a laser diode that emits visible laser light or the like. The irradiation unit 3 may further include a reflecting mirror that reflects the light emitted from the light source, a lens that collects the light, and the like.

  The irradiation unit 3 may irradiate light directly to the first fiber end 102a of the first optical fiber 102, or may irradiate light via another optical fiber or the like. For example, the light irradiated by the irradiation unit 3 through the optical fiber provided in the connector (not shown) of the line connection member (not shown) similar to the first line connection member 1 and the second line connection member 2 is A single fiber end 102a may be irradiated.

  The irradiation unit 3 may irradiate light continuously or discontinuously. For example, the light may be irradiated for a predetermined time at a predetermined time interval or an indefinite time interval. For example, the irradiation unit 3 may emit pulsed light. The light irradiation by the irradiating unit 3 may be appropriately turned on and off according to a user operation or the like. For example, the irradiation unit 3 may irradiate light having a blinking pattern designated in advance. By irradiating light of such a pattern, it is possible to easily detect visually the light emitted from the first optical fiber 102 or the second optical fiber 202 depending on the connection state of the fluid line.

  The light emitted by the irradiation unit 3 is preferably light of a color that can be visually discerned with respect to room light. For example, the light is preferably red, blue, or the like, which is different from the color of light emitted from the room lamp. By making the color distinguishable with respect to room light, the light emitted from the first optical fiber 102 or the second optical fiber 202 can be easily detected visually depending on the connection state of the fluid line. it can.

  Moreover, it is preferable that the color of the light which the irradiation part 3 of the different fluid line connection system 1000 used for a several different fluid line irradiates is a different color. As a result, it is possible to confirm which fluid line is connected in a normal state based on the color of light emitted from the first optical fiber 102 or the second optical fiber 202.

  Since the detailed structure of the irradiation part 3 is a well-known technique, detailed description is abbreviate | omitted here.

  Hereinafter, the process which detects the connection condition of the fluid line (infusion line) provided with the 1st line connection member 1 and the 2nd line connection member 2 using the fluid line connection system of this Embodiment. A case where infusion is performed will be described as an example.

  First, in order for the user who is a medical person to perform infusion, the 1st connector 101 of the 1st line connection member 1 and the 2nd connector 201 of the 2nd line connection member 2 are not connected In this case, the introduction needle 104 of the first line connection member 1 is stabbed into a drip bag or the like (not shown), and the needle 204a of the needle portion 204 of the second line connection member 2 is inserted into the vein of the patient's arm or the like. Sting. Next, the first connector 101 of the first line connecting member 1 and the second connector of the second line connecting member 2 in a state where light is irradiated from the irradiation unit 3 to the first optical fiber 102. The second connector 201 is connected. Specifically, the convex portion 101b of the first connector 101 is fitted into the concave portion 201b of the second connector 201 along the screw groove. Here, the light emitted by the irradiation unit 3 is assumed to be blue light that has passed through a blue filter (not shown).

  Here, when the convex portion 101b of the first connector 101 is normally fitted into the concave portion 201b of the second connector 201, the first connector 101 and the second connector 201 are normally connected. The first connector 101 and the second connector 201 to which the first tube 103 and the second tube 203 are connected are in communication with each other, and the second fiber end 102b of the first optical fiber 102 The first fiber end 202a of the second optical fiber 202 is in an optically connected state at the portion where the first connector 101 and the second connector 201 are connected. For example, the optical axis of the second fiber end 102 b of the first optical fiber 102 and the optical axis of the first fiber end 202 a of the second optical fiber 202 coincide with each other. Specifically, the connection state between the first connector 101 and the second connector 201 is as shown in FIGS. 4 (a) and 4 (b). Moreover, the 1st line connection member 1 and the 2nd line connection member 2 will be in the state connected so that a flow path might be connected, as shown in FIG.2 (b).

  In this case, the light irradiated from the irradiation unit 3 to the first fiber end 102 a of the first optical fiber 102 passes through the inside of the first optical fiber 102 and the second fiber of the first optical fiber 102. The light emitted from the end 102 b is incident on the first fiber end 202 a of the second optical fiber 202. Since the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are optically connected, the second fiber end 102b of the optical fiber 102 is connected. The light emitted from the second optical fiber 202 is not emitted to the portion other than the first fiber end 202a of the second optical fiber 202. Therefore, light leaks to the first connector 101 and the second connector 201. Absent.

  For this reason, if light does not leak into the first connector 101 or the second connector 201, the user can determine that the first connector 101 and the second connector 201 are normally connected. . That is, it can be determined that the infusion line is normally connected. Note that the normal connection between the first connector 101 and the second connector 201 means that the first connector 101 and the second connector 201 are connected in a desired positional relationship. You may think.

  And it becomes possible for a user to perform infusion by adjusting the flow regulator 106 grade | etc.,.

  Further, as described above, when the first connector 101 and the second connector 201 are normally connected, the light emitted from the first optical fiber 102 is the first of the second optical fiber 202. Is incident on the second fiber end 202 a, passes through the second optical fiber 202, and exits from the second fiber end 202 b of the second optical fiber 202 attached to the needle portion 204. For this reason, the light emitted from the second fiber end 202b is irradiated in the distal direction of the needle 204a, and this light can be detected in the vicinity of the distal direction of the needle 204a stabbed by the patient. For example, light emitted from the second fiber end 202b is detected in the vicinity of the portion of the patient's arm where the needle 204a is pierced. That is, if light is emitted from the needle portion 204, it can be determined that the infusion line is normally connected. Further, since the light emitted from the irradiation unit 3 is blue, the light emitted from the needle unit 204 is also blue, so that the user can easily detect the light visually.

  Here, it is assumed that the convex portion 101 b of the first connector 101 is not normally fitted into the concave portion 201 b of the second connector 201. For example, the convex portion 101b of the first connector 101 is not sufficiently fitted into the concave portion 201b of the second connector 201, or the convex portion 101b of the first connector 101 is inclined with respect to the original fitting direction. Suppose that it was inserted in force. In this case, the connection state between the first connector 101 and the second connector 201 becomes poor, and there is a possibility that leakage of infusion or the like occurs from this connection portion.

  In such a case, the second fiber end 102 b of the first optical fiber 102 and the first fiber end 202 a of the second optical fiber 202 are connected to the first connector 101 and the second connector 201. In such a portion, the optical connection is not established. For example, the optical axis of the second fiber end 102 b of the first optical fiber 102 does not match the optical axis of the first fiber end 202 a of the second optical fiber 202. Specifically, the connection state between the first connector 101 and the second connector 201 is as shown in FIG. 4 (c) and FIG. 4 (d).

  In this case, the light irradiated from the irradiation unit 3 to the first fiber end 102 a of the first optical fiber 102 passes through the inside of the first optical fiber 102 and the second fiber of the first optical fiber 102. Although it is emitted from the end 102b, the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are not optically connected, and thus are emitted. The light is not incident on the first fiber end 202a of the second optical fiber 202, but is emitted to a portion other than the first fiber end 202a of the second optical fiber 202. That is, it irradiates with respect to the 2nd connector 201 here. Therefore, light leaks to the first connector 101 and the second connector 201.

  For this reason, if light leaks to the first connector 101 or the second connector 201, the user can determine that the first connector 101 and the second connector 201 are not normally connected. . That is, it can be determined that the infusion line is not normally connected. In addition, since the light emitted from the irradiation unit 3 is blue, the leaking light is also blue, so that the user can easily detect the light visually.

  Further, the optical axis between the second fiber end 102 b of the first optical fiber 102 and the first fiber end 202 a of the second optical fiber 202 is defined as the connection direction of the first connector 101 and the second connector 201. When the second fiber end 102b of the first optical fiber 102 and the first fiber end 202a of the second optical fiber 202 are not optically connected to each other, In this case, the light emitted from the first optical fiber 102 is emitted while being inclined in the direction of the side surface of the second connector 201, and the light is emitted from the side surface side of the first connector 101 or the second connector 201. It is easy to detect, and it can be easily detected that the infusion line is not normally connected.

  In order to easily detect light leakage from the outside of the first connector 101 or the second connector 201, the material of the first connector 101 or the second connector 201 is, for example, a material that transmits light, Specifically, it is preferable to use a transparent or translucent material. In addition, the colors of the first connector 101 and the second connector 201 may be a color in which transmitted light or leaked light is easily distinguishable with the naked eye, or a color that is easy to detect, such as white or milky white. preferable. For example, a transparent or translucent material is preferable. For example, the material of the first connector 101 or the second connector 201 is preferably a translucent plastic whose color is white or milky white or transparent is plastic.

  In this case, as described above, when the first connector 101 and the second connector 201 are not normally connected, the light emitted from the first optical fiber 102 is transmitted to the second optical fiber. Since light is not incident on the first fiber end 202 a of 202, light is not emitted from the second fiber end 202 b of the second optical fiber 202 attached to the needle portion 204. For this reason, the light radiate | emitted from the needle part 204 stabbed by the patient is not detected. In other words, if light is not emitted from the needle portion 204, it can be determined that the infusion line is not normally connected or that there is an abnormality in the connection of the infusion line.

  As described above, according to the present embodiment, the second fiber end 102b of the first optical fiber 102 is provided in the first connector 101, and the first fiber end 202a of the second optical fiber 202 is connected to the second connector. When the first connector 101 and the second connector 201 are normally connected to each other, the second fiber end 102b of the first optical fiber 102 and the first optical fiber 202 are connected to each other. The fiber end 202a of the first connector 101 is optically connected, and if not normally connected, the optical end is not optically connected. From the presence or absence of light leakage, the connection status between the first connector 101 and the second connector 201 can be determined, and the connection status of the fluid line can be determined.

  In the fluid line connection system 1000 of the above embodiment, the first line connection member 1 and the second line connection member 2 are used. However, in the present invention, as the line connection member, Similar to the connector 101 and the second connector 201, the connector provided in the fluid flow path, and the connector similar to the first optical fiber 102 and the second optical fiber 202, at least one fiber end A line connecting member provided with an optical fiber provided with the may be used. In this line connection member, the connector can be connected to another connector provided in another flow path so that the flow path provided with the connector communicates with another flow path constituting the fluid line. The one fiber end of the optical fiber is optically connected to the one fiber end of the optical fiber installed in the other connector when the connector of the line connecting member is connected to the other connector. Shall be. The line connecting member may further include a tube attached to the connector, similar to the first tube 103 and the second tube 203. Such a line connecting member is, for example, one provided with at least the first connector 101 and the first optical fiber 102 of the first line connecting member 1 shown in FIG. The second line connecting member 2 shown in (a) has the same configuration as that including at least the second connector 201 and the second optical fiber 202.

  According to the fluid line connection system using such a line connection member, the same effects as those of the above embodiment can be obtained. This line connecting member can also be used in other embodiments.

  In such a line connecting member, the first connector 101 and the same connector as the second connector 201 may be provided at both ends of the flow path (for example, both ends of the pipe). By connecting the connectors at both ends of such a line connecting member to the connectors of other line connecting members, it is possible to extend the fluid line while maintaining a state where the connection state can be detected. . The same applies to the first line connecting member 1, the second line connecting member 2, and the like.

  Moreover, the pipe connected to the connector of the line connecting member as described above may have a branch structure. In such a case, the first connector or the second connector is also included in the branched pipe. A connector similar to the connector and an optical fiber having one end provided on the connector are provided, and this connector is connected so that the flow path provided with this connector communicates with other flow paths constituting the fluid line. It can be connected to other connectors provided in other flow paths, and one end of the optical fiber is installed in this other connector when the connector of this line connection member is connected to another connector. The optical fiber may be optically connected to one end of the optical fiber. By doing in this way, it becomes possible to detect a connection state also about the branched flow path. In this case, in the branched line connection member, it is preferable to provide a different optical fiber for each branched flow path so that the connection state can be detected. Moreover, about these different optical fibers, it is preferable to provide the several irradiation part 3 so that the light which the different irradiation part 3 irradiates may inject. The same applies to the first line connecting member 1, the second line connecting member 2, and the like.

  The fluid line connection system 1000 may include other members other than the first line connection member 1, the second line connection member 2, and the irradiation unit 3. For example, you may have another line connection member, the pump which supplies / discharges a fluid, etc.

(Embodiment 2)
In the present embodiment, the connection state of the fluid line can be automatically detected in the above embodiment.

  FIG. 6 is a diagram showing the configuration of the fluid line connection system 2000 (FIG. 6A) and the diagram showing the configuration of the irradiation unit 3a (FIG. b)), and the figure which shows the structure of the reflective mirror 4 (FIG.6 (c)).

  The fluid line connection system 2000 includes a first line connection member 1, a second line connection member 2, an irradiation unit 3 a, a light receiving unit 5, and an output unit 6. For example, a venous needle or the like (not shown) may be provided at the second tube end 203b of the second tube 203.

  6, the same reference numerals as those in FIG. 1 denote the same or corresponding parts. However, here, both the first optical fiber 102 and the second optical fiber 202 are assumed to be reflective optical fibers. For example, it is assumed that this reflection type optical fiber is an optical fiber having a forward path core and a return path core in one optical fiber.

  The irradiation unit 3 a includes a light source 31 and a half mirror 32.

  The light source 31 is disposed at a position where emitted light is incident on the first fiber end 102 a of the first optical fiber 102. For example, the light source 31 is arranged so that its optical axis coincides with the optical axis of the first fiber end 102a. The light source 31 is, for example, an LED or a laser diode. The color of light emitted by the light source 31, the output interval of light, and the like are the same as, for example, the light emitted by the irradiation unit 3 described above.

  The half mirror 32 is disposed between the emission surface of the light source 31 and the first fiber end 102 a of the first optical fiber 102 so as to be inclined with respect to the optical axis of the optical fiber 102. For example, the light source 31 and the half mirror 32 are fixed by a fixing tool 33 or the like. The inclination angle of this half mirror is preferably around 45 degrees. The half mirror 32 is a mirror having a property of reflecting a part of incident light and transmitting a part thereof. By disposing the half mirror in this way, the light 32a emitted from the first fiber end 102a of the first optical fiber 102 is transmitted through the half mirror 32 and the first optical fiber 102 has the first optical fiber 102. The fiber end 102 a can be irradiated, and the light 32 b emitted from the first fiber end 102 a of the first optical fiber 102 is reflected by the half mirror 32, so that the light source 31 emits light from the first optical fiber 102. It can be extracted in a direction different from the path of the light applied to the first fiber end 102a. Between the light source 31 and the half mirror 32 on the optical axis of the light source 32, in order to prevent light emitted from the first fiber end 102 a and passing through the half mirror 32 from entering the light source 32. An optical isolator (not shown) or the like may be provided.

  The reflecting mirror 4 is disposed on the optical axis of the second fiber end 202b of the second optical fiber 202. For example, here, it is attached with a fixture 41 or the like. However, the end surface of the second fiber end 202b having a mirror surface by vapor deposition of metal or the like may be considered as the reflecting mirror 4 here. The reflecting mirror 4 is provided to reflect the light 41a emitted from the second fiber end 202b of the second optical fiber 202 to the second fiber end 202b.

  The light receiving unit 5 receives light emitted through the second optical fiber 202. The light receiving unit 5 is, for example, a photoelectric element. For example, the light receiving unit 5 is emitted from the second fiber end 202b of the second optical fiber 202 of the second line connecting member 2, reflected by the reflecting mirror 4, and incident on the second fiber end 202b again. The light emitted from the first fiber end 102 a of the first optical fiber 102 through the second optical fiber 202 and the first optical fiber 102 is received. As a result, the light receiving unit 5 only needs to receive light emitted through the second optical fiber 202. For example, the light receiving unit 5 passes through the second optical fiber and passes through the second fiber end of the second optical fiber 202. The light emitted from 202b may be directly received. In the light receiving unit 5, for example, a light receiving surface (not shown) is arranged at a position where light emitted from the first fiber end 102 a of the first optical fiber 102 can be received. In the light receiving unit 5, for example, a light receiving surface (not shown) is disposed at a position where it can receive light emitted from the first fiber end 102a of the first optical fiber 102 reflected by the half mirror 32 of the irradiation unit 3a. As a result, the light output from the first fiber end 102a is received.

  Here, the light emitted from the first fiber end 102 a of the first optical fiber 102 is irradiated to the first fiber end 102 a of the first optical fiber 102 from the light source 31. In this example, a half mirror 32 is provided in the irradiating unit 3a so as to be input to the light receiving surface of the light receiving unit 5 separately from the path of the first optical fiber 102. It is only necessary that the light emitted from 102a can be input to the light receiving unit 5. For example, the irradiation unit 3a may not have a half mirror. The light output from the light source 31 is reflected by the half mirror and is incident on the first fiber end 102a, and the light emitted from the first fiber end 102a is transmitted through the half mirror 32 to be received by the light receiving unit 5. For example, the arrangement of the light source 31 and the half mirror 32 may be changed.

  In addition, the light receiving unit 5 may receive light emitted once through the second optical fiber 202, and the light that has passed through the second optical fiber 202 passes through the first optical fiber 102 again. You may receive light without.

  The output unit 6 performs output related to the connection state between the first connector 101 and the second connector 201 according to the light received by the light receiving unit 5. The connection state between the first connector 101 and the second connector 201 may be considered as the connection state of the fluid line. The output relating to the connection state is, for example, an output indicating that the first connector 101 and the second connector 201 are normally connected or an output indicating that the first connector 101 and the second connector 201 are not normally connected. The term “normally connected” means, for example, that the first connector 101 and the second connector 201 are connected so as to have a predetermined positional relationship. Output here refers to lighting of the lamp, display on the display, sound output (including buzzer output, etc.), transmission to an external device, storage in a recording medium, other processing devices or other programs, etc. It is a concept that includes delivery of processing results.

  For example, the output unit 6 may determine the connection state between the first connector and the second connector according to the light received by the light receiving unit 5 and perform output according to the determination result. For example, the output unit 6 is configured such that the first connector and the second connector are not connected as an output related to the connection state when the intensity of light received by the light receiving unit 5 is equal to or less than a predetermined threshold value. May be output. The intensity of light may be considered as a current value indicating the intensity of light output from the light receiving unit 5. The output indicating that the connection is not established may be considered as an output such as a warning.

  In addition, you may perform the output regarding the connection state of a fluid line instead of the output regarding the connection state of a 1st connector and a 2nd connector.

  The output unit 6 may or may not include an output device such as a lamp, a display, or a speaker. The output unit 6 can be realized by driver software for an output device or driver software for an output device and an output device.

  In this fluid line connection system, when the first connector 101 and the second connector 201 are normally connected, the light emitted from the light source 31 of the irradiation unit 3a is the first optical fiber 102, The light is emitted from the second fiber end 202 b of the second optical fiber 202 through the connection portion between the first connector 101 and the second connector 201 and the second optical fiber 202. The light emitted from the second fiber end 202b is reflected by the reflecting mirror 4 and incident on the second fiber end 202b, and the second optical fiber 202, the second connector 201, and the first connector 101 are reflected. Is output from the first fiber end 102 a of the first optical fiber 102, reflected by the half mirror 32 of the irradiation unit 3 a, and incident on the light receiving unit 5. Is done.

  When the light receiving unit 5 receives light emitted from the second fiber end 202b and reflected by the half mirror 32, the output unit 6 determines whether the intensity of the light received by the light receiving unit 5 is equal to or less than a predetermined threshold value. Judge whether or not. For example, the output unit 6 determines whether or not the value of the current output according to the intensity of light received by the light receiving unit 5 is equal to or less than a predetermined threshold value.

  Also in the fluid line connection system 2000 of the present embodiment, similarly to the fluid line connection system 1000 described above, the first connector 101 and the second connector 201 are connected to be used as a fluid line.

  Here, for example, when the first connector 101 and the second connector 201 are normally connected, the optical connection loss between the first optical fiber 102 and the second optical fiber 202 is reduced. Therefore, the light irradiated by the irradiation unit 3a is reflected by the reflecting mirror 4 without being significantly reduced in the path formed by the first optical fiber 102 and the second optical fiber 202, and is received. It is incident on the part 5. For this reason, the intensity of the light received by the light receiving unit 5 exceeds the threshold value. For example, the value of the current output from the light receiving unit 5 is a value that exceeds a predetermined threshold value. The output unit 6 indicates that the first connector 101 and the second connector 201 are normally connected because the intensity of the light received by the light receiving unit 5 is a value that exceeds a predetermined threshold value. Output. For example, a lamp indicating that the connection is normal is turned on.

  Further, for example, when the first connector 101 and the second connector 201 are not normally connected, the first optical fiber 102 and the second optical fiber 202 are connected so as to increase the optical connection loss. Or, since light is not transmitted and received between the first optical fiber 102 and the second optical fiber 202, the light irradiated by the irradiation unit 3a is the first optical fiber 102 and the second light. In the path formed by the fiber 202, the light falls significantly and enters the light receiving unit 5 or does not enter the light receiving unit 5 at all. For this reason, the intensity of the light received by the light receiving unit 5 becomes a value equal to or less than the threshold value. For example, the value of the current output from the light receiving unit 5 is a value that is equal to or less than a predetermined threshold. The output unit 6 is an output indicating that the first connector 101 and the second connector 201 are not normally connected because the intensity of light received by the light receiving unit 5 is equal to or lower than a predetermined threshold value. An output indicating that the fluid line is not normally connected, for example, lighting of a lamp or output of a warning sound is performed.

  Note that the output unit 6 may output when it is normally connected, or may not output when it is not normally connected, or when it is normally connected. May not be output, or may be output when not connected normally, and such a case may also be considered as a form of output depending on the connection status. .

  As described above, according to the present embodiment, the connection state of the fluid line is automatically detected by receiving the light emitted through the second optical fiber 202 and performing output according to the intensity of the received light. Can be notified.

  In the present embodiment, the case where reflective optical fibers are used as the first optical fiber 102 and the second optical fiber 202 has been described. However, in the present invention, the first light as described above is used. A transmission type optical fiber may be used as the fiber 102 and the second optical fiber 202. In such a case, in the fluid line connection system 1000 shown in the first embodiment, the light receiving unit 5 and The output unit 6 is provided so that the light receiving surface of the light receiving unit 5 can receive light output from the second fiber end 202b of the second optical fiber 202, for example, the second fiber end 202b. It may be located at a position on the optical axis. Even in such a case, the same effects as those of the second embodiment are obtained.

  Further, in the second embodiment, instead of using a reflection type optical fiber, a pair of two optical fibers constituting the forward path and the return path are used as the first optical fiber 102 and the second optical fiber 202, respectively. You may do it. In this case, the half mirror or the like can be omitted by directing the optical axis direction of the first optical fiber 102 on the return path side on the irradiation unit 3 a side to a direction other than the light source 31. For example, the optical axis direction of the first optical fiber 102 on the return path side may be arranged to face the light receiving surface of the light receiving unit 5.

  Further, in the fluid line connection system 1000 described in the present embodiment, the light receiving unit 5 and the output unit 6 are omitted, and light output from the first fiber end 102a of the first optical fiber 102 (for example, half The light reflected by the mirror 32) may be used for the user to check visually. In such a case, the same effects as those of the first embodiment are obtained.

  In each of the above embodiments, each component may be configured by dedicated hardware, or a component that can be realized by software, such as the output unit 6, is realized by executing a program. May be. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory. At the time of execution, the program execution unit may execute the program while accessing a storage unit (for example, a recording medium such as a hard disk or a memory).

  The present invention is not limited to the above-described embodiments, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, the fluid line connection system and the like according to the present invention are suitable as a system and the like used for fluid line connection, and are particularly useful as a system and the like that can confirm the connection state of the fluid line.

DESCRIPTION OF SYMBOLS 1 1st line connection member 2 2nd line connection member 3, 3a Irradiation part 4 Reflecting mirror 5 Light reception part 6 Output part 31 Light source 32 Half mirror 33, 41, 204b Fixture 101 First connector 101a Through-hole 101b Convex Part 102 First optical fiber 102a First optical fiber first fiber end 102b First optical fiber second fiber end 103 First tube 103a First tube first tube end 103a First Second tube end 104 Inlet needle 105 Drip tube 106 Flow controller 201 Second connector 201a Through hole 201b Recessed portion 202 Second optical fiber 202a First optical fiber end 202b of the second optical fiber Optical fiber second fiber end 203 second tube 203a second tube first tube end 203b second tube second tube end 204 needle 204a Needle 1000, 2000 Fluid line connection system

Claims (10)

A fluid line connection system including a first line connection member, a second line connection member, and an irradiation unit used for connection of a medical fluid line,
The first line connecting member is
A first connector provided in the first flow path of the fluid;
A first optical fiber having a first end and a second end, wherein the second end is installed in the first connector;
The second line connecting member is
A second connector provided in the second flow path of the fluid and connected to the first connector so that the second flow path communicates with the first flow path;
A first end and a second end; when the first end is installed on the second connector and the first connector and the second connector are connected, A second optical fiber having a first end optically connected to a second end of the first optical fiber, and
The fluid line connection system in which the irradiation unit irradiates light to the first end of the first optical fiber. The optical axis direction of the second end of the first optical fiber and the optical axis direction of the first end of the second optical fiber are connected to the first connector and the second connector. The fluid line connection system according to claim 1, wherein the fluid line connection system is installed inclined with respect to a direction. The first line connecting member is a tube constituting the first flow path, further comprising a first tube which is a tube provided with the first connector at at least one end,
The second line connecting member further includes a second pipe which is a pipe constituting the second flow path and is provided with the second connector at at least one end. The fluid line connection system according to claim 1 or 2. The fluid line connection system according to any one of claims 1 to 3, wherein the light emitted by the irradiation unit is light of a color that can be visually discerned with respect to room light. A light receiving unit that receives light emitted through the second optical fiber;
The fluid line connection according to any one of claims 1 to 4, further comprising: an output unit that performs an output related to a connection state between the first connector and the second connector in accordance with light received by the light receiving unit. system. The said output part performs the output which shows that the 1st connector and the 2nd connector are not connected when the intensity | strength of the light which the said light-receiving part received is below a predetermined threshold value. The fluid line connection system described. The fluid line connection system according to claim 5, wherein the light receiving unit receives light emitted from a second end of the second optical fiber. On the optical axis of the second end of the second optical fiber, further comprises a reflecting mirror for reflecting the light emitted from the second end to the second end,
The light receiving unit receives light reflected from the reflecting mirror and emitted from a first end of the first optical fiber via the second optical fiber and the first optical fiber. 8. The fluid line connection system according to 7. A line connecting member used for connecting a medical fluid line,
A connector provided in a fluid flow path;
An optical fiber having one end installed on the connector;
The connector is connectable to another connector provided in the other flow path so that the flow path provided with the connector communicates with another flow path constituting the fluid line.
One end of the optical fiber is optically connected to one end of the optical fiber installed in the other connector when the connector is connected to the other connector. . The line connecting member according to claim 9, further comprising a pipe constituting a fluid flow path, wherein the connector is provided at one end.

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